JAVASCRIPT

javascript find file extension from string

var ext =  fileName.split('.').pop();

how to get the extension from filename using javascript

var ext = fileName.substr(fileName.lastIndexOf('.') + 1);

JavaScript - How to get the extension of a filename

let filename = "index.js";
let extension = filename.split(".").pop();

console.log(extension); // "js"

javascript get file extension from string

// Use the lastIndexOf method to find the last period in the string, and get the part of the string after that:

var ext = fileName.substr(fileName.lastIndexOf('.') + 1);

how to check the extension of a file in javascript

return filename.split('.').pop();

how to get file extension in javascript

var fileName = "myDocument.pdf";
var fileExtension = fileName.split('.').pop(); //"pdf"

file extension name in js

const path = require('path')

path.extname('picture.png') //.png
path.extname('picture.of.a.dog.png') //.png
path.extname('picture.of.a.dog.jpg') //.jpg
path.extname('picture.of.a.dog.jpeg') //.jpeg

Get file extension in javascript

file.originalname.match(/..*$/)[0]